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Khloe Kardashian went to the Katy Perry concert at the Hollywood Bowl on Wednesday evening, and she was in a great mood when X17 photographers snapped her photo. After all she's been through this year, it's so good to see her smile!

A few weeks after reports surfaced that Khloe's estranged hubby Lamar Odom was battling a serious drug problem, she attended Katy's Labor Day bash, so it sounds like the singer has been helping the reality starlet through her tough times. Seeing as Katy's ex-husband Russell Brand broke up with her via text message and then said nasty stuff about her after their split, she certainly knows a thing or two about relationship drama!